The invention relates to a Chinese medicinal cataplasm preparation for treating infantile pneumonia. The Chinese medicinal cataplasm preparation consists of Chinese medicinal ointment, a substrate and an ointment covering substance, wherein the Chinese medicinal ointment consists of 90 to 110 grams of rhubarb ointment powder, 80 to 110 grams of compound of glauber-salt and liquorice, 30 to 50 grams of baical skullcap root ointment powder, 30 to 50 grams of mulferry root bark ointment powder and 0.3 to 0.5 gram of garlic oil. The Chinese medicinal cataplasm preparation has a simple preparationprocess, has a good curative effect on the infantile pneumonia in which moist rales are difficult to absorb or lung shadows are difficult to eliminate, and is high in biocompatibility, affinity, air permeability and perspiration resistance on skin.